This (obviously) affects output from top etc too. It is a neat feature which I think is worth having, but time will tell..

mod_ifier

A long time ago I put together an Apache module which allowed the evaluation of security rules against incoming HTTP requests. mod_ifier was largely ignored by the world. But this week it did receive a little attention.

Recently I've been wanting to replace my old point and shoot camera, a Canon PowerShot A620. I've got a pair of DLSR cameras and I do frequently carry one of them out with me, but there are undoubtedly occasions where I'd rather not bother, or where I find myself wanting to take a picture without having one to hand.

Unfortunately the PowerShot is pretty large itself, although significantly less so than the DSLRS I possess. (I cannot remember the last time I used the PowerShot outside my flat, that is how rarely it goes outdoors).

The PowerShot has been a good camera to me for many years and the three features I liked the most:

Picking a replacement camera, even with the help of fine comparison websites like snapsort.com is hard. Cameras have moved on and "improved" a lot over the last few years - to the extent that finding one with a built-in viewfinder is hard. Finding one with a built-in viewfinder and running on easily replaceable batteries was virtually impossible.

The way that you use the LCD or viewfinder differs pretty significantly, but the LCD wasn't as bad as I'd feared:

ViewFinder

You hold the camera to your eye, and press the appropriate buttons.

LCD

You typically hold the camera at arms length, which means you're prone to shaking your hands/arms and getting blurry shots.

Because you're holding the camera relatively far away from your eyes if you have the sun at your back you're liable to need to squint.

The LCD on the Lumix FS-16 isn't amazing, but neither is it horrific and it is better than expected in dark locations.

So after a week what do I think? On the whole it is a fine camera, better than the PowerShot in many ways, and while it has draw-backs none are deal-breakers:

Size

The best camera is one you have with you; on that basis this camera is a clear win being smaller, lighter, and more compact than the Canon.

I've taken this camera with me, randomly, to several places and returned with useful and interesting images.

Low Light

Low light performance is pretty poor. With only one manual control you see noise if you're shooting in gloomy pubs, and outdoors. With the flash you can get acceptable pictures if you're careful - but its a tricky thing to get right.

(To update this a little: Outdoors at night? No. In a pub with poor lighting you'll be alright.)

Manual Controls

The camera features precisely two manual controls:

"Flash on" vs. "Flash off".

ISO can be changed from: Auto, 100, 200, 400, 800, 1200 and 1600.

There is no notion of shutter speed, nor is there any ability to change the aperture size. (Though both these values are displayed on the screen as you take a picture I wonder why? As you can't change anything you can't use the information in any useful fashion, and presumably a non-camera-person wouldn't understand what these numbers represent.)

The lack of these two controls is a little galling, but pretty common for the low-end P&S cameras.

Video Recording

There is no external MIC so sounds aren't great, but they're not horrible either.

Video recordings are limited to the smaller of 8 minutes or 2Gb. So no long films, but short ones look fine. Just be aware that once you start recording focus won't change, nor will zooming work.

Compared to the canon the quality is improved; but the Canon allowed you to (optically) zoom whilst recording. Here you can only zoom with your feet.

Recharging Time

When I received the camera it took about an hour to charge. The battery life seems reasonable - the level is 2/3 a week later and I've been shooting, reviewing, and deleting regularly.

(Note: I never use USB to transfer pictures, I always remove the card and plug it into my PC. Whether this makes a difference to battery life I don't know.)

Controls

Physical controls are reasonable. There is a mechanical slide-switch to turn on/off. I like that, as it is less prone to being knocked by keys, change, etc.

There is also a physical slide-switch to change from "shoot" to "review current images/videos". (Same as my Canon) I think this is a mistake, and don't see why it can't be a soft-button.

Full Auto

There are several modes available in the camera (remember the caveat about lack of aperture/shutter speed) I've been using both full-auto and manual modes, and both are good. Full auto would suit most people - it has clever face-tracking.

Focusing Speed

As expected this is not stellar. Walking to the corner shop the other lunchtime I found a cat in the road, I talked to her and she rubbed herself against my ankles. Could I focus fast enough to catch her looking up at me? No.

For static scenes, and candid shots of people it'll suffice. For fast action and moving children probably not a chance.

On balance, the upgrade was worthwhile.

ObQuote: "I don't mean to lecture and I don't mean to preach. And I know I'm not your father..." - Spider-Man

We can also upload to different paths so we can replicate a
file-system if we wanted to. (I added in "type" to hold either "file"
or "directory", though I guess if we were to code up a FUSE client we'd
want to store things like ctime, UID, GID, etc. THe list operation will
show both files and sub-directories)

The code was trivial once I got the hang of Sinatra, and I'm pretty
pleased with it so far. I don't yet need to use it for anything, but
I'm thinking of unifying the way that I store images on a couple of
sites - and fetching them via JSON and Javascript might be an option
this was an experiment in that direction. (Though I'd probably want to
hook in rsync so we replicated the eventual upload location for safety.)

In other news I've been all organized and upgraded the kernel on my guest:

I've been informed by a couple of people that the Debian Administration site is down. Sadly it is; at the moment the host isn't showing anything on the serial console and remotely power-cycling it isn't showing any signs of life.

At this time of year I don't want to drag anybody in to take care of it, so ETA on recovery/replacement hardware is Monday/Tuesday.

In other news I've made it to year five of the KVM hosting sub-project/thing. Originally started as a Xen host its been running happily for quite some time. I suspect next year, or the year after that the price/specification ratio will end up losing out and we'll cancel the whole thing - but there are no immediate reasons to make any change.

Finally I knocked up a simple tool to validate my TinyDNS records prior to uploading them. It is simplistic, but adequate to catch the kind of mistakes I make:

Honestly it probably wants to be rationalised a little more - and check records more carefully. e.g. Ensure that the host a CNAME refers to itself exists, and making sure that the nameservers specified are valid.

I just wanted to make something quick after accidentally uploading a zonefile where I'd managed to fat-finger several important records. le sigh.

Oddly enough asking on serverfault.com showed no real suggestions - other than actually running tinydns locally and doing a zone-xfer to validate records. Overkill and harder than I'd like.

December was a month that started out pretty well, in the first 10 days I had five models/friends/random-folk come to pose for me. (I have a few folk lined up for mid-January, but things tailed off quickly this month due to people having little free time).

I spent a while mulling over what I was doing with images, as I've recently been doing a fair number of more NSFW images - In December this and this were my two favourite shots.

I've posted NSFW images in various places over the past year (with permission; some volunteers/victims/friends don't want me to share anything, so I don't. They just hang on my walls.) but I was never consistent.

Anyway I realised that .xxx domains are now available, so I figured I'd snarf one up and use that. That lead to tasteful.xxx - which is mostly full of images I didn't actually take, but that will change. (Sadly "artistic" was gone!)

In more on-topic news I reported #651896 - a trivial security issue in another setgid(games) binary. I've got a couple more of those to tidy up and report in the near future.

I suspect I could drop the pything2.6-minimal package, but for the moment I'm done. I have to make pretty people look exceptional with my magical camera.

Anyway as part of this cleanup I ran a quick sanity-check on which processes are running and I think, short of kernel processes, I'm as minimal as I can be. I understand the purpose and reason for every running service:

These are basic services; I use monit to ensure those essential daemons keep running. The only oddity there is probably the local DNS cache, but it is useful if you run any kind of DNS blacklist-using service, for example.

As I'm generally lazy and busy (yes it is possible to be both simultaneously!) I didn't do anything.

But happily earlier in the week I received a bunch of updates from Jean Baptiste which implemented support for managing Windows clients, via Strawberry Perl.

So I guess the conclusion is: Do nothing. Change nothing. Just fix any issues which are reported to me, and leave it as-is. (I did a little more than that, refactoring to avoid duplication and improve "neatness".)

As I said at the time I've had some interesting feedback, suggestions and bugfixes from people over the past year or so - so I shouldn't be surprised to learn I'm not the only person using it.

Until last month I had two database in use, one each for a pair of
web-applications. As of now one is using redis - which I'm already
using for my image hosting - and the other application is using SQLite.

Until recently I had a high opinion of SQLite, although that has now been downgraded a little, it is still a thoroughly excellent piece of software. I was just surprised at little things it was missing, to the extent I had to rewrite my applications SQL.

Still one less service is a good thing, and the migration wasn't so painful..

In more productive news I recently acquired a nice external flash - the Yongnuo YN-460 II is (very) cheap and cheerful, it can be fired remotely with my triggers so I've had a lot of fun with opportunistically taking pictures and experimenting with lighting.

Most of the results are NSFW, but there are some other examples lurking around including the first time I managed to successfully capture a falling water-drop. (Not the best picture, not the most explicit effect, but fun regardless. I both can and will do better next time!)

Somebody recently asked me to write about "camera stuff under linux" and happily I declined.

Why decline? Because there are so many good tools, applications, and
utilities. (I use local tools for organisation and duplicate detection, rawtherapee for RAW conversion and GIMP for touchups). Having many available options is fantastic though, and something hard to appreciate for "newcomers" to Linux.

(Yeah I waited 90 seconds - if I remembered to add -nojava - for Netscape Navigator to start, under X10, with 8Mb of RAM. Happier days are here. Sure DRM is bad, secure boot .. an open question, but damn we have it good compared to almost any previous point in time!)

ObQuote: "Yeah, obviously it is only a tactical party. I'm only having a party to eventually get sex." - Peep Show

There are many system administration and configuration management tools available, I've mentioned them in the past and we're probably all familiar with our pet favourites.

The "biggies" include CFEngine, Puppet, Chef, BFG2. The "minis" are largely in-house tools, or abuses of existing software such as fabric.

My own personal solution manages my home network, and three dedicated servers I pay for in various ways.

Currently I've been setting up some configuration "stuff" for a friend and I've elected to manage some of the setup with this system of my own, and I guess I need to decide what I'm going to do going forward.

slaughter is well maintained, largely by virtue of not doing too much. The things it does are genuinely useful and entirely sufficient to handle a lot of the common tasks - and because the server-side requirement is a HTTP server, and the only client-side requirement is CRON it is trivial to deploy.

In the past I've thought of three alternatives that would make it more complex:

Stop using HTTP and have a mini-daemon to both serve and schedule.

Stop using HTTP and use rsync instead.

Rewrite it in Javascript. (Yes, really).

Each approaches have their appeal. I like the idea of only executing GPG-signed policies, and that would be trivial if there was a real server in place. It could also use SSL because that's all you need for security (ha!).

On the other hand using rsync allows me to trivially implement the only missing primitive I actually miss at times - the ability to recursively download and install a remote directory tree. (I solve this problem by downloading a .tar file and unpacking it. Not good. Doesn't cope with template expansion and is fiddlier than I like).

In the lifetime of the project I think I've had 20-50 feature requests or comments, which suggests it might actually be used by 50-100 people. (Ha! Optimism)

In the meantime I'll keep a careful eye on the number of people who download the tarball & the binary packages...

I still continue to prefer images of people and I was recently pleased with the delivery of my first "photobook". Over the past couple of years I've slowly decorated my flat with prints (4"x6" - A2) of my pictures, but seeing the pictures in a nicely bound book makes them feel so much more real.

I've also been doing a little more software development, mostly relating to the archiving of images and the workflow of taking RAW images, converting them, and finally uploading via rsync. I suspect the tools I've put together are Steve-specific, but I did have some fun with duplicate image detection and eilimination - something I've written about in the past.

ObQuote: "Better to write for yourself and have no public than to write for the public and have no self" - Cyril Connolly.